A new iPhone 15 draining fast is usually a software issue, not a bad battery — hardware failure this early is uncommon. Here’s what to check before assuming you need a repair.
Go to Settings > Battery to see a breakdown by app, including how much is used in the background versus on-screen. This usually points straight to the culprit — often a social media app or a background refresh setting rather than the phone itself being at fault.
Settings > General > Background App Refresh lets you disable it per-app rather than entirely. Leave it on for apps you need instant updates from — messaging, email — and turn it off for everything else that doesn’t need to run when you’re not using it.
A buggy app update is one of the most common causes of sudden battery drain — it can get stuck in a loop using the CPU even when you’re not actively using it. If one app shows unusually high battery use in the breakdown, updating or reinstalling it often resolves it completely.
Apps with “Always” location access and heavy push notification use both keep the phone’s radios active more often than necessary. Settings > Privacy & Security > Location Services lets you switch most apps to “While Using,” which noticeably reduces background drain.
Apple has shipped battery-related fixes in point updates before, sometimes specifically addressing a drain issue reported after a previous release. If you haven’t updated recently, check Settings > General > Software Update.
If you’ve worked through all of the above on a new phone and drain is still abnormal, it’s worth an actual battery health check rather than more settings tweaking — even new batteries can occasionally have a manufacturing defect. Our iPhone repair team can test it in a few minutes.
Want your iPhone checked out? Visit your nearest CellPros — Ashlan Ave, Peach & Kings Canyon, or Tower District — for a diagnostic and same-day service on most repairs. Contact us to book.